EnviroNearby

Page County, Virginia air quality history

Daily Air Quality Index summaries from EPA monitors in Page, Virginia, 1999–2015.

80%
Good days in 2015
43
Median daily AQI, 2015
0
Days above 100 in 2015
243
Days with an AQI in 2015 (of 365)

In 2015, EPA reported a daily Air Quality Index (AQI) for Page, Virginia on 243 days. 195 of those days (80%) were in the Good range, and the median daily AQI was 43. That median is higher than the typical monitored county in Virginia (median 40 across 27 counties), and about the same as the typical monitored U.S. county (41). The main pollutant was ozone on 181 days. Across the years with fuller monitoring, the share of Good days rose: an average of 46% in 2000–2002 versus 81% in 2013–2015.

EPA did not report an AQI for every day of 2015 here (243 of 365 days). Figures describe monitored days only; seasonal monitoring (for example, ozone measured only in warmer months) can make a county look cleaner or dirtier than a full-year record would.

The most recent year with data for this county is 2015; EPA's files for 2016–2025 contain no row for it, which usually means its monitors stopped reporting.

Years with fewer than 120 monitored days (1999) are shown in the table but left out of comparisons and trend statements.

How the days broke down each year

Each bar is one year. The colored segments show the share of monitored days that fell in each AQI category.

Share of monitored days in each AQI category, by year0%25%50%75%100%1999: Good 53 of 111 days1999: Moderate 38 of 111 days1999: Unhealthy for Sensitive Groups 16 of 111 days1999: Unhealthy 4 of 111 days19992000: Good 120 of 257 days2000: Moderate 127 of 257 days2000: Unhealthy for Sensitive Groups 8 of 257 days2000: Unhealthy 2 of 257 days2001: Good 109 of 258 days2001: Moderate 131 of 258 days2001: Unhealthy for Sensitive Groups 12 of 258 days2001: Unhealthy 6 of 258 days20012002: Good 128 of 262 days2002: Moderate 113 of 262 days2002: Unhealthy for Sensitive Groups 20 of 262 days2002: Unhealthy 1 of 262 days2003: Good 146 of 261 days2003: Moderate 107 of 261 days2003: Unhealthy for Sensitive Groups 6 of 261 days2003: Unhealthy 2 of 261 days20032004: Good 161 of 262 days2004: Moderate 98 of 262 days2004: Unhealthy for Sensitive Groups 3 of 262 days2005: Good 116 of 257 days2005: Moderate 126 of 257 days2005: Unhealthy for Sensitive Groups 15 of 257 days20052006: Good 140 of 261 days2006: Moderate 117 of 261 days2006: Unhealthy for Sensitive Groups 4 of 261 days2007: Good 137 of 257 days2007: Moderate 117 of 257 days2007: Unhealthy for Sensitive Groups 3 of 257 days20072008: Good 169 of 263 days2008: Moderate 91 of 263 days2008: Unhealthy for Sensitive Groups 3 of 263 days2009: Good 193 of 263 days2009: Moderate 70 of 263 days20092010: Good 152 of 265 days2010: Moderate 111 of 265 days2010: Unhealthy for Sensitive Groups 2 of 265 days2011: Good 180 of 263 days2011: Moderate 82 of 263 days2011: Unhealthy for Sensitive Groups 1 of 263 days20112012: Good 174 of 265 days2012: Moderate 88 of 265 days2012: Unhealthy for Sensitive Groups 3 of 265 days2013: Good 222 of 263 days2013: Moderate 41 of 263 days20132014: Good 208 of 265 days2014: Moderate 57 of 265 days2015: Good 195 of 243 days2015: Moderate 48 of 243 days2015
  • Good
  • Moderate
  • Unhealthy for Sensitive Groups
  • Unhealthy
  • Very Unhealthy
  • Hazardous

Typical and high-end AQI over time

The median is the middle day of the year. The 90th percentile is the level that only the highest 10% of days exceeded.

Median and 90th-percentile daily AQI, by year0501001501999: 90th percentile AQI 1192000: 90th percentile AQI 872001: 90th percentile AQI 932002: 90th percentile AQI 932003: 90th percentile AQI 802004: 90th percentile AQI 782005: 90th percentile AQI 872006: 90th percentile AQI 802007: 90th percentile AQI 772008: 90th percentile AQI 672009: 90th percentile AQI 592010: 90th percentile AQI 712011: 90th percentile AQI 662012: 90th percentile AQI 712013: 90th percentile AQI 552014: 90th percentile AQI 572015: 90th percentile AQI 571999: Median AQI 522000: Median AQI 522001: Median AQI 542002: Median AQI 512003: Median AQI 492004: Median AQI 452005: Median AQI 532006: Median AQI 492007: Median AQI 502008: Median AQI 462009: Median AQI 412010: Median AQI 482011: Median AQI 442012: Median AQI 452013: Median AQI 402014: Median AQI 422015: Median AQI 43199920012003200520072009201120132015
  • Median daily AQI
  • 90th-percentile daily AQI

Main pollutant by day, 2015

On each monitored day, the AQI reflects whichever measured pollutant had the highest index. This counts how many days each pollutant set the AQI. A pollutant that was not measured here cannot appear.

PollutantDays as main pollutantShare of monitored days
Ozone18174%
Fine particles (PM2.5)6226%

Year-by-year data

Annual AQI summary by year
YearDays with AQIGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardousMedian AQI90th pct.Max AQIMain pollutant
2015243195480000435790Ozone
2014265208570000425780Ozone
2013263222410000405577Ozone
20122651748830004571108Ozone
20112631808210004466101Ozone
201026515211120004871115Ozone
2009263193700000415980Ozone
20082631699130004667115Ozone
200725713711730005077112Ozone
200626114011740004980122Ozone
2005257116126150005387129Ozone
20042621619830004578129Ozone
200326114610762004980197Ozone
2002262128113201005193185Ozone
2001258109131126005493164Ozone
200025712012782005287185Ozone
199911153381640052119177Ozone

What this data can and can’t tell you

It is a county-level summary. EPA reports one AQI per day for the county, based on the monitors operating there. Air at a particular street, school or home can differ, especially near roads, industry or wildfire smoke.

It is not a health assessment. The AQI is EPA’s scale for communicating daily air quality. A county’s history can’t tell you what the health risk is for any particular person. For daily conditions and health guidance, see AirNow.

Rules change over time. EPA has revised AQI breakpoints, most recently for fine particles in 2024, so some year-to-year change can reflect the scale rather than the air.

All monitored counties in Virginia

Source: U.S. EPA AirData, “Annual AQI by County” files for 1999–2015 (EPA download page). EPA file dates: 2026-06-26. Imported into EnviroNearby November 5, 2026. How we use this data · Report a problem